CN205370660U - High -speed gear box machinery driving protection device of turbine - Google Patents
High -speed gear box machinery driving protection device of turbine Download PDFInfo
- Publication number
- CN205370660U CN205370660U CN201620179546.2U CN201620179546U CN205370660U CN 205370660 U CN205370660 U CN 205370660U CN 201620179546 U CN201620179546 U CN 201620179546U CN 205370660 U CN205370660 U CN 205370660U
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- flying barrel
- gear box
- speed gear
- turbine
- flying
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Abstract
The utility model discloses a high -speed gear box machinery driving protection device of turbine, include flying barrel outer lane, flying barrel inner circle, elastic component and be used for controlling the actuating mechanism that turbine drive arrangement slows down or shuts down, the flying barrel outer lane is with can be in centrifugal force effect radial movement's mode suit in flying barrel inner circle outside down, the elastic component is used for providing the elasticity that resets for the flying barrel outer lane, actuating mechanism installs the rotational speed or the control turbine drive arrangement that touch actuating mechanism and then reduce the high -speed gear box of turbine when the box of the high -speed gear box of turbine makes the flying barrel outer lane take place radial movement and shuts down, the utility model discloses a high -speed gear box machinery driving protection device of turbine, driving protection device issues rotational speed or the shut down of control turbine drive arrangement that lively work reduces the high -speed gear box of turbine in the effect of centrifugal force when the high -speed gearbox output shaft's of turbine rotational speed surpasses a definite value, compact structure, the reaction is sensitive, and the during operation does not need consumption of electric energy, and the reliability is high, makes easily and assembles, and the practicality is good.
Description
Technical field
This utility model relates to a kind of runaway protector, particularly relates to a kind of turbine high-speed gear box machinery runaway protector.
Background technology
Safe operation in order to ensure turbine high-speed gear box is set with the highest safe speed of rotation in advance; once the highest safe speed of rotation that the actual speed of turbine high-speed gear box output shaft exceedes design is easy for causing security incident, it is therefore desirable to the output shaft for turbine high-speed gear box designs runaway protector.
Existing runaway protector is mainly electronic type structure; namely a speed probe is adopted to detect the actual speed of rotating shaft; the data that speed probe collects are transferred to control system; once the actual speed that speed probe collects exceedes the highest safe speed of rotation set in advance, then control system and send control signal control shutdown.Although the runaway protector simple in construction of this version; but speed probe will not work under power failure state; so runaway protector now just fails, if the actual speed of at this moment rotating shaft exceedes the highest safe speed of rotation, thus very easily causes security incident.As seen from the above, the runaway protector reliability of electronic type structure is poor.
Utility model content
In view of this; the purpose of this utility model is to provide a kind of mechanical type runaway protector for turbine high-speed gear box; when the rotating speed of turbine high-speed gear box output shaft exceedes certain value, runaway protector occurs action to reduce the rotating speed of turbine high-speed gear box or to control the shutdown of turbine driving device under the influence of centrifugal force; compact conformation; being quick on the draw, need not consume electric energy during work, reliability is high; easily manufacturing and assembling, practicality is good.
Turbine high-speed gear box machinery runaway protector of the present utility model, including flying barrel outer ring, flying barrel inner ring, elastic component and for control turbine driving device slow down or shut down actuator；The output shaft being fixed on turbine high-speed gear box that described flying barrel inner ring is coaxial；Described flying barrel outer ring is can be set in outside flying barrel inner ring in the way of moving radially under centrifugal action；Described elastic component is radially supported between flying barrel inner ring and flying barrel outer ring for providing reseting elasticity for flying barrel outer ring；Described actuator is installed on when the casing of turbine high-speed gear box makes flying barrel outer ring move radially touching actuator and then reduces the rotating speed of turbine high-speed gear box or control turbine driving device and shut down.
Further, also including the flying barrel bolt being interspersed between flying barrel outer ring and flying barrel inner ring along flying barrel outer ring moving direction, described flying barrel bolt is fixed on flying barrel outer ring and is in axial sliding connection in flying barrel inner ring.
Further, the nut being fixed on flying barrel bolt is also included；Described elastic component is set in flying barrel bolt outside and is supported between flying barrel inner ring and nut, and elastic component is located at inside flying barrel inner ring.
Further, described flying barrel outer ring is eccentric hoop structure and is set in outside flying barrel inner ring in the way of its cylindrical is concentric with flying barrel inner ring.
Further, described actuator includes push rod and microswitch；Described microswitch is fixedly installed in the casing of turbine high-speed gear box；Described push rod is shut down along the casing being connected to turbine high-speed gear box that radially slides of flying barrel outer ring for touching microswitch and then control turbine driving device under the impetus of flying barrel outer ring.
Further, what described push rod was coaxial towards one end of flying barrel outer ring is fixed with adapter sleeve；It is threaded connection between described adapter sleeve and push rod.
Further, described actuator also includes being set in push rod outside and forming the valve seat of machinery gate gurgle valve with push rod for spool；Described valve seat is fixed on the casing of turbine high-speed gear box；Machinery gate gurgle valve is connected to the oil cylinder of turbine driving device quick-closing valve.
The beneficial effects of the utility model are: turbine high-speed gear box machinery runaway protector of the present utility model; when the rotating speed of turbine high-speed gear box output shaft exceedes certain value, runaway protector occurs action to reduce the rotating speed of turbine high-speed gear box or to control the shutdown of turbine driving device under the influence of centrifugal force; compact conformation; it is quick on the draw; electric energy need not be consumed during work; reliability is high, it is easy to manufacturing and assembling, practicality is good.
Accompanying drawing explanation
Fig. 1 is structural scheme of mechanism of the present utility model；
Fig. 2 is the top view of Fig. 1.
Detailed description of the invention
Fig. 1 is structural scheme of mechanism of the present utility model; Fig. 2 is the top view of Fig. 1; as shown in the figure: the turbine high-speed gear box machinery runaway protector of the present embodiment, including flying barrel outer ring 1, flying barrel inner ring 2, elastic component 3 and for control turbine driving device slow down or shut down actuator；The output shaft 4 being fixed on turbine high-speed gear box that described flying barrel inner ring 2 is coaxial；Described flying barrel outer ring 1 is can be set in outside flying barrel inner ring 2 in the way of moving radially under centrifugal action；Described elastic component 3 is radially supported between flying barrel inner ring 2 and flying barrel outer ring 1 for providing reseting elasticity for flying barrel outer ring 1；Described actuator is installed on when the casing 5 of turbine high-speed gear box makes flying barrel outer ring 1 move radially touching actuator and then reduces the rotating speed of turbine high-speed gear box or control turbine driving device and shut down；nullThe endoporus aperture of flying barrel outer ring 1 is more than the outside diameter of flying barrel inner ring 2，Or flying barrel outer ring 1 bore design is the bar hole that arc inner wall radius is identical with flying barrel inner ring 2 radius，In the present embodiment, the endoporus of flying barrel outer ring 1 is bar hole structure，It is easy to assembling and location，The movement of flying barrel outer ring 1 can be led simultaneously，Limit the moving direction of flying barrel outer ring 1，Make to operate steadily，Flying barrel outer ring 1 is eccentric hoop structure or by making flying barrel outer ring 1 form eccentric part at the side-wall hole of flying barrel outer ring 1 or groove，Flying barrel outer ring 1 and flying barrel inner ring 2 synchronous axial system，Therefore when rotating speed reaches certain value, flying barrel outer ring 1 can overcome the elastic force of elastic component 3 to produce to move radially，And then touching actuator reduces the rotating speed of turbine high-speed gear box or controls the shutdown of turbine driving device，Compact conformation，It is quick on the draw，Electric energy need not be consumed during work，Reliability is high，Easily manufacture and assembling，Practicality is good.
In the present embodiment, also include the flying barrel bolt 6 being interspersed between flying barrel outer ring 1 and flying barrel inner ring 2 along flying barrel outer ring 1 moving direction, described flying barrel bolt 6 is fixed on flying barrel outer ring 1 and is in axial sliding connection in flying barrel inner ring 2, arranging flying barrel bolt 6 can not only make flying barrel outer ring 1 with flying barrel inner ring 2 synchronous axial system, and flying barrel outer ring 1 can be carried out slide-and-guide, improving structural stability, flying barrel outer ring 1 is provided with the pin 13 for flying barrel bolt 6 carries out locking positioning.
In the present embodiment, also include the nut 7 being fixed on flying barrel bolt 6；Described elastic component 3 is set in flying barrel bolt 6 outside and is supported between flying barrel inner ring 2 and nut 7, and it is internal that elastic component 3 is located at flying barrel inner ring 2, and flying barrel inner ring 2 is internal is provided with the cavity volume for holding elastic component 3, elastic component 3 mounting structure is hidden, stable, rational in infrastructure, attractive in appearance, it is hardly damaged.
In the present embodiment, described flying barrel outer ring 1 is for eccentric hoop structure and is set in flying barrel inner ring 2 outside in the way of its cylindrical is concentric with flying barrel inner ring 2, and the endoporus of flying barrel outer ring 1 is the bar hole that arc inner wall radius is identical with flying barrel inner ring 2 radius；Flying barrel outer ring 1 simple in construction, it is easy to processing, is beneficial to saving cost, and flying barrel bolt 6 interts along the heavy wall place of flying barrel outer ring 1 to thin-walled place.
In the present embodiment, described actuator includes push rod 8 and microswitch 9；Described microswitch 9 is fixedly installed in the casing 5 of turbine high-speed gear box；Described push rod 8 is shut down along the casing 5 being connected to turbine high-speed gear box that radially slides of flying barrel outer ring 1 for touching microswitch 9 and then control turbine driving device under the impetus of flying barrel outer ring 1; reliability is high; easily manufacture and assembling; practicality is good, and described push rod 8 is fixed with for Non-follow control push rod 8 handle 12 in axial sliding.
In the present embodiment, what described push rod 8 was coaxial towards one end of flying barrel outer ring 1 is fixed with adapter sleeve 10；It is threaded connection between described adapter sleeve 10 and push rod 8, the gap between push rod 8 and flying barrel outer ring 1 can be adjusted as required, and then set the rotating speed of turbine high-speed gear box when action occurs push rod 8 as required, also can be replaced after adapter sleeve 10 weares and teares, avoid push rod 8 integral replacing, reduce maintenance cost.
In the present embodiment, described actuator also includes being set in push rod 8 outside and forming the valve seat 11 of machinery gate gurgle valve with push rod 8 for spool；Described valve seat 11 is fixed on the casing 5 of turbine high-speed gear box；Machinery gate gurgle valve is connected to the oil cylinder of turbine driving device quick-closing valve；When flying barrel outer ring 1 carries out eccentric action, machinery gate gurgle valve opens leakage passage, makes the hydraulic oil in quick-closing valve oil cylinder release rapidly, closes oil cylinder with speed per hour and resets under spring force, and quick-closing valve is closed, and whole turbine driving device is shut down.
What finally illustrate is, above example is only in order to illustrate the technical solution of the utility model and unrestricted, although this utility model being described in detail with reference to preferred embodiment, it will be understood by those within the art that, the technical solution of the utility model can be modified or equivalent replacement, without deviating from objective and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (7)
1. a turbine high-speed gear box machinery runaway protector, it is characterised in that: include flying barrel outer ring, flying barrel inner ring, elastic component and for control turbine driving device slow down or shut down actuator；The output shaft being fixed on turbine high-speed gear box that described flying barrel inner ring is coaxial；Described flying barrel outer ring is can be set in outside flying barrel inner ring in the way of moving radially under centrifugal action；Described elastic component is radially supported between flying barrel inner ring and flying barrel outer ring for providing reseting elasticity for flying barrel outer ring；Described actuator is installed on when the casing of turbine high-speed gear box makes flying barrel outer ring move radially touching actuator and then reduces the rotating speed of turbine high-speed gear box or control turbine driving device and shut down.
2. turbine high-speed gear box machinery runaway protector according to claim 1; it is characterized in that: also including the flying barrel bolt being interspersed between flying barrel outer ring and flying barrel inner ring along flying barrel outer ring moving direction, described flying barrel bolt is fixed on flying barrel outer ring and is in axial sliding connection in flying barrel inner ring.
3. turbine high-speed gear box machinery runaway protector according to claim 2, it is characterised in that: also include the nut being fixed on flying barrel bolt；Described elastic component is set in flying barrel bolt outside and is supported between flying barrel inner ring and nut, and elastic component is located at inside flying barrel inner ring.
4. turbine high-speed gear box machinery runaway protector according to claim 2, it is characterised in that: described flying barrel outer ring is eccentric hoop structure and is set in outside flying barrel inner ring in the way of its cylindrical is concentric with flying barrel inner ring.
5. turbine high-speed gear box machinery runaway protector according to claim 1, it is characterised in that: described actuator includes push rod and microswitch；Described microswitch is fixedly installed in the casing of turbine high-speed gear box；Described push rod is shut down along the casing being connected to turbine high-speed gear box that radially slides of flying barrel outer ring for touching microswitch and then control turbine driving device under the impetus of flying barrel outer ring.
6. turbine high-speed gear box machinery runaway protector according to claim 5, it is characterised in that: what described push rod was coaxial towards one end of flying barrel outer ring is fixed with adapter sleeve；It is threaded connection between described adapter sleeve and push rod.
7. turbine high-speed gear box machinery runaway protector according to claim 5, it is characterised in that: described actuator also includes being set in push rod outside and forming the valve seat of machinery gate gurgle valve with push rod for spool；Described valve seat is fixed on the casing of turbine high-speed gear box；Machinery gate gurgle valve is connected to the oil cylinder of turbine driving device quick-closing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620179546.2U CN205370660U (en) | 2016-03-09 | 2016-03-09 | High -speed gear box machinery driving protection device of turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620179546.2U CN205370660U (en) | 2016-03-09 | 2016-03-09 | High -speed gear box machinery driving protection device of turbine |
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| Publication Number | Publication Date |
|---|---|
| CN205370660U true CN205370660U (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620179546.2U Active CN205370660U (en) | 2016-03-09 | 2016-03-09 | High -speed gear box machinery driving protection device of turbine |
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| CN (1) | CN205370660U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285798A (en) * | 2016-10-21 | 2017-01-04 | 中国神华能源股份有限公司 | Turbine over system and steam turbine |
| CN110273717A (en) * | 2019-07-22 | 2019-09-24 | 浙江华元汽轮机械有限公司 | Turbomachinery and its mechanical axial displacement limiting device |
-
2016
- 2016-03-09 CN CN201620179546.2U patent/CN205370660U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285798A (en) * | 2016-10-21 | 2017-01-04 | 中国神华能源股份有限公司 | Turbine over system and steam turbine |
| CN106285798B (en) * | 2016-10-21 | 2017-09-15 | 中国神华能源股份有限公司 | Turbine over system and steam turbine |
| WO2018072740A1 (en) * | 2016-10-21 | 2018-04-26 | 中国神华能源股份有限公司 | Steam turbine overspeed protection system, and steam turbine |
| US10989065B2 (en) | 2016-10-21 | 2021-04-27 | China Shenhua Energy Company Limited | Steam turbine overspeed protection system, and steam turbine |
| CN110273717A (en) * | 2019-07-22 | 2019-09-24 | 浙江华元汽轮机械有限公司 | Turbomachinery and its mechanical axial displacement limiting device |
| CN110273717B (en) * | 2019-07-22 | 2024-03-12 | 浙江华元汽轮机械有限公司 | Turbine machine and mechanical axial displacement protection device thereof |
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